The Walden Effect: Farming, simple living, permaculture, and invention.

5 gallon bucket solar shower update

Five gallon bucket aquarium heater shower do it yourself


It would seem that our spurt of springtime sunshine wasn't quite enough energy to heat up my 5 gallon bucket solar shower to any noticeable warmth.

The next stage of the experiment involves a small 2-15 gallon submersible aquarium heater which can be found for around 15 dollars at local retail outlets. It automatically warms your water to a 76 to 80 degree range, but you need to give it a full 24 hours to reach that temperature.

small Kill a Watt device to measure energy output for 20 bucksInstalling the heater was easy thanks to the attached suction cup and it didn't take much effort at all to wrap some reflectix around the sides and the top to hold the heat in.

I plugged in a Kill-a-Watt device to measure how much power it will need. Anna thinks it might be comparable to heating up a pot of water on the electric stove, which is just the sort of debate we got the Kill-a-Watt gizmo for. The heater is only rated at 50 watts, which might be less power at 24 hours compared to 5 minutes of a 220 volt stove top coil.



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About us: Anna Hess and Mark Hamilton spent over a decade living self-sufficiently in the mountains of Virginia before moving north to start over from scratch in the foothills of Ohio. They've experimented with permaculture, no-till gardening, trailersteading, home-based microbusinesses and much more, writing about their adventures in both blogs and books.



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But probably a nice breeding temperature for legionella and possibly other bacteria. :-(

A hot water system in a house should heat the water to at least 60°C (140°F) and preferably 70°C (158°F) to kill bacteria. The hot water should then be mixed with cold water in the shower or tap to get the desired temperature.

Copper water lines also hinder the development of bacteria.

Via the teensy development board website I found this private website with a very interesting PV and solar hot water setup.

Comment by Roland_Smith Sun Apr 10 07:03:01 2011
Those are great points. I, personally, don't like the idea of hot water sitting around waiting to be used, so I'm glad your data backs up my gut feeling. :-)
Comment by anna Sun Apr 10 07:34:57 2011





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